Matthew Poole and continuators on Job 37:19

19. Teach us what we shall say unto him : for we cannot order our speech by reason of darkness .

i. e. Unto God, either by way of Apology for thee: or rather by way of debate and disputation with him about his counsels and ways; about which we know not what to say, and therefore are willing to be taught by thee who pretendest to such exquisit knowledge of these matters. So it is a reproof of his presumption and arrogance.

we know neither with what words or matter, nor in what method and manner, to maintain discourse with him, or plead against him. The words our speech, are easily understood out of the former Clause of the Verse.

Both because of the darkness of the matter, God's counsels and ways being a great depth▪ and far out of our reach; and because of the darkness or blindness of our minds.

Marginal references: Ch. 32. 14.